diff --git a/npm/index.js b/npm/index.js
index 2957a6b..bed7bdf 100644
--- a/npm/index.js
+++ b/npm/index.js
@@ -272,8 +272,12 @@ async function read(fd = 0) {
 }
 
 function isFile(fs, path) {
-  const stat = fs.statSync(path, {throwIfNoEntry: false})
-  return stat !== undefined && stat.isFile()
+  try {
+    const stat = fs.statSync(path, {throwIfNoEntry: false})
+    return stat !== undefined && stat.isFile()
+  } catch (err) {
+    return false
+  }
 }
 
 function sleepSync(ms) {
diff --git a/npm/test.js b/npm/test.js
index bf096b5..686b158 100644
--- a/npm/test.js
+++ b/npm/test.js
@@ -221,4 +221,10 @@ void async function main() {
     const {stdout} = await runNoPipe(`.name package.json`)
     t.equal(stdout, 'fx\n')
   })
+
+  await test('cli - very large arg', async t => {
+    const {status, stderr, stdout} = await run(42, `'x => x /* dsasdfaskjdfhaskldjfhgaslkdjfhasdlkfjhasdlkfjhasdlfkjhasdflkjasdhflkjasdhflacnskdcfhalsdkfjhasldkfjhcasdlckfajhdsflbkasjdhfclnaskdjhfalskdfgjhsdflkfjhasdlfkahjsdflkasjhdflkafdggrhdfggsdfghsdghadfgsdfgsdfglhadshfglaksjdfhalskjdfhasldkfjhaldfkjhasdlfkjhasdflkjhadflkhasdlkfjhdfkhjasdlfkjhasdflkhaflkcansdfhvlkvajhfgvbalergtcqwaleifhavslbkfchasdblkfhldsfhasdfasfasdfdfdddddddadlakfjhas */'`)
+    t.equal(status, 0, stderr)
+    t.equal(stdout, '42\n')
+  })
 }()